internal void TeardownMultipleArrowNavigationSession()
{
// If the multiple navigator handler is null, it means the teardown request was captured by a key that was part of some other event. We simply ignore it in this case.
if (MultipleNavigationHandler == null)
{
return;
}
MultipleNavigationHandler = null;
if (!SelectionManager.HasSelection || SelectionManager.IsMultipleSelection)
{
TreeView.Focus();
}
else
{
SelectionManager.SelectedItems.Single().Focus();
}
}
// Shift + Arrow Navigation
internal void HandleMultipleArrowNavigation()
{
if (!AllowArrowNavigation || !SelectionManager.SelectedItems.Any())
{
return;
}
if (!AllowMultipleSelection)
{
HandleArrowNavigation();
return;
}
if (MultipleNavigationHandler == null)
{
MultipleNavigationHandler = new TreeViewArrowNavigationHandler(TreeView, SelectionManager.SelectedItems.Last(), TreeViewNavigationDirection.Down);
}
MultipleNavigationHandler.NavigateDown();
}
